package Fieldo2;

public class BookTest {public static void main(String[] args) {
    Book book = new Book();
    String info = book.getBookInfo();
    System.out.println(info);
    String bookNameSetBefore = book.getBookName();
    System.out.println("------------------------");
    System.out.println(bookNameSetBefore);
    book.setBookName("三国演义");
    String bookNameSetAfter = book.getBookName();
    System.out.println(bookNameSetAfter);
    System.out.println("------------------------");
    book.setPrice(100);
    book.setAuthor("罗贯中");
    book.setPublisher("新华出版社");
    System.out.println(book.getBookInfo());
}

}
